Hydrocarbon burner



Feb. 23 1926.

P. B. JOHNSON HYDROCARBON BURNER Filed August 10 1925 INVENTOR P8227 5. nfalmson Patented Feb. 23, 1926.

UNITED] srarss PETER B. JOHNSON, OF SEATTLE, WASHINGTON.

HYDROCARBON BURNER.

Application filed August 10, 1925.

To all whom it may concern:

Be it known that 1, PETER B. J onnson, a citizen of the United States, residing at Seattle, in the county of King and State of 1V ashington, have invented a certain new and useful Improvement in Hydrocarbon Burners, of which the following is a specilication.

My invention relates to hydrocarbon burners and the object of my invention is to provide a hydrocarbon burner comprising a body portion constructed so as to form therein a plurality of intercommunicating gas distribution chambers that are arranged to receive a supply of gas under pressure from a centrally located well or source of supply and distribute the gas without any substantial variations of pressure to a plurality of burner tips that are arranged above said gas distribution chambers.

Another object is to provide a burner body having a continuous passageway for gas extending entirely around the outside marginal portion thereof that connects with other passageways that connect with a central distribution chamber all of said passageways having air inlet vents disposed therebetween.

I accomplish these objects by devices illustrated in the accompanying drawing, wherein Figure 1 is a view in longitudinal midsection .on broken line 1, 1 of Fig. 3 of a hydrocarbon burner constructed in accordance with my invention, parts being shown in elevation;

Fig. 2 is a plan view of the burner body with the top casting and fuel generating pipe removed;

Fig. 3 is a view in cross-section on broken line 3, 3 of Fig. 1; and

Fig. 4 is a fragmentary plan veiw of one end of the burner.

Referring to the drawings, throughout which like reference numerals indicate like parts, I show a burner body of relatively shallow disk-like construction comprising a bottom wall 6 and upwardly extending marginal walls 7.

Formed within the burner body and extending upwardly from the bottom of the same are a plurality of elements 8, 9, 10, 11, 12 and 13 that terminate in a plane parallel with the top edge of the marginal wall 7 and are spaced as shown in Fig. 2 to leave passageways 14 therebetween which pas- Serial no. 49,168.

sageways all communicate at the center of the burner body with a shallow fuel inlet well 15, said passageways also communicating with the marginal portion of the burner body with a marginal passageway 16 that extends entirely and continuously around the burner body. The elements 8, 10 11 and 13 eachconverge from bottom to top and form draft passageways 17 through which air may flow upwardly through the burner body for purposes of combustion as hereinafter explained.

The elements 9 and 12 are disposed in the medial longitudinal plane of the burner body and are wider than the elements 8, 10, 11 and 13. The well 15 is located between the ends of the elements 9 and 12 and is connected with the fuel inlet pipe 18 that is inclined downwardly from the well 15 toward its outer end so that in case liquid fuel finds its way into the well 15, in the event the burner should become extinguished, it will drain off through said pipe 18.

A gas generator pipe 19 having a tip 20 that projects through a hood 21 into the end of the fuel inlet pipe 17 is arranged to deliver gasified fuel into said fuel inlet pipe. The gas generator pipe 19 is in the form of a loop and extends from one end of the burner body to the other and thence back and is supported on the brackets 22 and 23 on a cover plate or top casting 24 that fits over the top of the burner body and rests upon the marginal wall 7 and on the upwardly protruding elements 8 to 13 inclusive.

The cover plate 24 has a plurality of per forated burner tips 25 therein that are disposed over the passageways 14 and 16 and through which gasified fuel may be emitted for purposes of combustion and said cover plate 24 is provided with draft openings 26 that register with the passageways 17 that are formed in elements 8, 10, 11 and 13 respectively.

A priming receptacle 27 extends lengthwise along the center of the cover plate 24 for the reception of liquid fuel, as wood alcohol, that may be burned therein to gasify the fuel in pipe 19. The wall of the cover plate 24 may be solid above the top elements 9 and 12, as shown in the drawings.

The burner tips 25, as shown, are arranged in four longitudinal rows over the passageways 14 and 16 with the draft openings 26 between the two outside rows along each side. The passageways 14: and 16 are relatively large and are unobstructed so that they afford ample area for a free and unrestricted circulation of gas and permit said gas to be distributed without any substantial variation of pressure to all of the burner tips 25. The novel and efiicient means for distributing the gas from the center of the burner body without substantial variations of pressure together with the means for supplying air constitute an importantfeature of my invention.

In operation of my hydrocarbon burner, liquid fuel entering through the generator pipe 19 is gasified and emitted from the tip 20 into the fuel supply pipe 18. This jet of gas entering the pipe 19 under pressure draws air in with it and passes from the pipe 19 into the well 15 and is thence distributed through passageways 14 and 16 to the burner tips. During its travel through pipe 18, well 15 and passageways 14 and 16 the gas is thoroughly mixed with the air and is emitted from the burner tips 25 in the proper condition to mix with the additional air that is drawn upwardly through passageways 17 and burn with a hot flame.

It will be noted that the generator pipes 19 are not disposed directly above the two middle rows of burner tips but are set relatively close together so that the greater portion of said pipes is between said two rows of burner tips. This avoids overheating the pipe in ordinary operation and also eliminates any carbonizing effects within the 1 e, p The foregoing description and accomp anying drawings clearly disclose a preferred embodiment of my invention but it will be understood that this disclosure is merely illustrative and that such changes in the device may be resorted to as are within the scope and spirit of my invention.

vVhat I claim is:

1. In a hydrocarbon burner, a burner body, means forming a fuel receptacle in the center of said burner body, elements within said burner bodyfor subdividing the same into a plurality of passageways that communicate with and extend outwardly from saidfuel receptacle and into a marginal passageway that communicates with said first named passageways and that extends entirely and continuously around said burner body, said elements having draft openings extending therethrough, a cover plate having openings that register with vsaid draft openings and perforated burner tips in said cover plate above said passageways.

2. In a burner of the class described a burner body, means forming a fuel receiving well in the center of said burner body, a fuel inlet pipe connected with said well, a plurality of spaced integral subdividing elements extending upwardly from the bottom of said burner body and disposed lengthwise thereof, each of said subdividing elements being formed of spaced walls that leave draft openings therebetween, said subdividing elements forming a continuous marginal passageway around said burner body and forming longitudinal and transverse passageways that extend between said marginal passageway and said fuel receiving well, a cover plate having draft openings that register with the draft openings at each side of the center line of the burner, and perforated burner tips in said cover plate above said passageways.

In testimony whereof, I hereunto subscribe my name this 28th day of July, A. D.,

PETER B. JOHNSON. 

